Abstract: Purification section of syngas from coal is located after water gas shift to remove hydrogen sulfide, carbon dioxide as the main gas impurities and obtain high purity hydrogen. At present, the mature purification processes include wet method represented by low temperature methanol scrubbing and liquid nitrogen scrubbing, and dry method represented by pressure swing adsorption decarburization. The operating temperature of the elevated temperature pressure swing adsorption technology proposed is consistent with the temperature of the incoming shift gas. Self-made hydrophobic nitrogen-rich activated carbon adsorbent was deployed to achieve desulfurization and carburization by increasing the traditional pressure swing adsorption operating temperature to 170-220 ℃ and high humidity environment. Two new PSA steps, high pressure steam rinse and low pressure nitrogen purge, were adopted to improve H_2 recovery to above 99%. The elevated temperature pressure swing adsorption H_2/CO_2 separation demonstration with a processing capacity of 5 000 m~3/h(standard condition)was built and operated using coal based shift gas from Quanji Plant as the feedstock for the pilot plant. The purity of hydrogen reaches the hydrogen fuel level(including N_2) through two-stage ETPSA, and the pilot plant has been running for more than 2 800 hours in total. In addition, the energy consumption of the pilot plant was calculated based on the utilities expenses. When taking power consumption into consideration, the operation cost of H_2 purification for the pilot test can be significantly reduced by about 35% compared with the power consumption of H_2 purification by low temperature methanol scrubbing at Fengxi Plant. This technology breaks through the limitation of temperature of conventional adsorption and purification for solid adsorbents, and realizes directional removal of impurities in hydrogen by using adsorbents with preferred selective adsorption performance at elevated temperature, which confirms a new process route for efficient and high-quality hydrogen purification.